Trolley guard



Patented Apr. 25, 1922.

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3 fspecification of Iiettersfatent.

1 hp pl ication 'fikd'NoV emllef11p1920i" Serial m 423,308.

T0 allwhomz't may conceraaif;

B it known that'I, R EPHeE L HARLOWE, a citizen of the UnitedxStates,residing at Los Angeles, in the county of Los Angeles and 'State ofCalifornia, have invented new II 'and useful Improvements in TrolleyGuards, I of which the following 'is' a specification.

It is the object of this invention to pm.

vide a trolley guard sofarranged as toretain the trolley wheel inengagement with the trolley wire, "but readily movable withrelation tothe trolley wheel so as to pass the suspension insulators for thetrolley wire.

The invention will be readily understood from the following descriptionof the accompanying drawings, in which;

I Figure 1 is a'plan view ofa trolleywith the wheel thereof engaging atrolley wire:

and provided with the improved guard. Fig. 2 is a side elevation of. thesame.

Fig; 3 is a transversesection on the line 3-3 of Fig.2.

I have shown the trolley' wire at 1 sup "ported by the usual suspensioninsulators 2 I tions 3 engaging thetrolley wire.

' The trolley pole, harp and wheel maybe of usual construction as shownat 4, 5 and 6, Y

which are provided with thedepending p01 respectively, and the trolleywheel is provided with the usual grooved periphery- 7 adapted to engagebeneath the trolley wire 1. The improved guard comprises a bracket 8fixed to one of the bearings 9 for the trolley wheel as by the screw 10.1 The guard includes a plate 11 hinged'tobra'cketS-and extendingupwardly therefrom at one side of the wheel 6. Acoil spring 12 overliesthe hinged connection between plate 11 and V bracket 8 with the ends ofsaid spring fixed .to the plate and bracket, respectively, as

shown at 13. By this arrangement it will be seen that the plate 11 isnormally held -in position extending upwardly along side .of the wheel6, but is arranged toyield outtrolley wire 1 in slightly spaced relationabove the same. I portion of plate 11, preferably, extend beyond platell as shown at 16 at the side The ends of this guard the usual trolleyof the guard po rtion acentplate The fi guard 15 tapers toward theopposite edgev of the same, as 'clearlyshown in Fig. 1, so

as to provide inclined 1 ends -17 for said guard. V v I.

By this. arrangement itwill be seen'that the guard will positively'prevent'the disengagement of the trolley wheel lfrom the trolley wirewhen in operative position, and that when'the trolley wheel approachesone of the suspension insulators the inclined end 1 mmq mi ratentedli r,35, 111922 e of the guard will abut againstthe portion .3- of thesuspension insulator so flSfliO' swing the guard outwardly upon thehinge ro-' 'videld': between platell, and bracket 8; I he guard w llthus pass the suspension insulator,fand'as soon as it is beyond the samewill be returnedto its operative position-by the tension of spring 12. I

pole may be provided with I rope 20, and aflexibl'e' con- I The trolleymotion 21, preferably, extends from the plate 11 above its hingedconnection with bracket 8, sothat when-the trolley-rope is pulled tolower the trolley wheelirom the f trolley wire the guardfwill' also beswung 1 outwardlyto permit of said disengagement of the trolley wheelfrom the trolleywire.

Various changes may be made without 'trolley'rope to .an eye 22 providedupon departing from the-spirit oftheinvention' as claimed. A

*What is claimed is:

1, The combination, with a trolley harp and wheel, of a plate fixed toone' o f the arms of the harp adjacent to thejbearing for I l the wheel,and aninverted'L-shaped guard] plate having the lower endof itsvertica'l leg'hinged to said plate, the horizontal "leg trolley wheeland the wire --receivinggrooy thereof.- V

2. The combination, atrol'ley harp I l I andwheel, of a platefixed toone ofthe .95 r v of which guard plate overlies the topof the i" 1armsofthe harp adjacent to the bearing for the-wheel, an invertedL-shaped guard plate having the lower end of its vertical-leg hingedto'said ,plate,'.the.horizofntal leg of 5" which guard plate overliesthe top of the 'trolleywheel and the wire receiving groove I thereof,and a spring' 'for retaining said guard plate in operative position 3.The combination, with a trolle 1; I

and wheel, of a plate fixed toone of the arms of the harp adjacent tothe bearing for the'wheel, an inverted L- shaped guard plate hai ing thelower end of its vertical, leg 7 hinged to said plate, the horizontalleg of which guard plate overlies the top of the trolley wheel and thewire receiving groove thereof, and both ends of 'the horizontal portionof said guard plate being inclined longitudinally.

I for the wheel, an inverted L-shaped guard beinginclinedlongitudinally.

plate having the lower end of its vertioal leg hinged to said plate, thehorizontal leg of Which guard plate'overlfijes the top of the trolleywheel and the wire receiving groove thereof, a spring for retaining"said guard plate in operative position, and both ends of the horizontalportion of. said g' uard'plat'e 'Intestimonywhereof I have signedmy 20.

name to this specification.

REPHA L E. HARLoWEi

